Abstract:A new Aedophron species, A. sumorita sp. n. is described from Iran. The genitalia of the four western Palaearctic species of the genus are characterised and illustrated. Aedophron monotonia Amsel, 1935 is synonymised with A. phlebophora Lederer, 1858. With 43 figures.Keywords: new species, Lepidoptera, Noctuidae, Iran, new synonymy, AedophronSubject: entomology